Team 6210z Jigsaw PV1 Reveal

VEX V5 General Discussion VEX Robot Showcase
1

After 2 long months of hard work, team 6210z is proud to present their first Nothing But Net robot, Jigsaw PV1. This design comprises a mecanum chassis geared 2:1 for speed, an intake with side rollers, and a horizontal, dual wheel flywheel geared 8:1 for speed, capable of launching 4 balls into the high goal in 0.5 seconds. Since this robot has qualified us for state in our first competition (thanks to 323z and 621a), we plan to take it apart in the coming weeks to start working on the design that we will bring to state. If you want to see a picture or video of anything not shown in this reveal please let me know soon or I might not be able to help you because this robot will be no more.

2

So you just do close up shots, right? It’s nice to see something a little different.

I like how your low goal pipe falls out when your bumps it. :stuck_out_tongue:

3

Yes, we figured that the best teams in the world would be shooting long ranged, so to fit perfectly with those teams we designed our robot to be efficient elsewhere (close range).

yep… the downside of a PVC and cardboard field, held together with zip ties.:stuck_out_tongue:

4

This is a very fascinating design, hopefully you didn’t break any low goals at competition! :stuck_out_tongue:

5

Nope, the ones with screws in them seem to be a bit sturdier.:smiley:

6

I’d like to see this robot in competition, since you won every match that you were in:
http://vex.us.nallen.me/teams/view/6210Z?t=results Do you have any match videos?

7

I don’t, but 323z does (they were our alliance partners in the elimination rounds). This was one of our lowest scoring matches as we played a little defense at the beginning and one of our chassis motors burnt out near the end (probably because we were trying to push the opposing robot). In SF1 of that competition we scored around 100 points, but this one was only 35. :confused:

8

Awesome to see something a bit different, can I ask what sort of ratio your running on that flywheel? (I could have missed this sorry :p).

Best of luck in competition :slight_smile:

9

Great robot btw, my team has been trying to come up with something like this that just shoots close. I noticed that in the “POV” shot that it missed the last ball, how often does this tend to happen? Basically what is your percentage of accuracy?

10

I think it was around 90% at our first competition. It has the capability of having 100% accuracy but everything is based on the ramp. There is a little dip in the ramp right before the flywheel and any change in that dip or the overall angle of the ramp results in a different launch speed and accuracy. If we were planing on improving upon this robot we would reinforce the ramp and that would eliminate the chance of the ramp getting bent, giving us 100% accuracy.

11

The flywheel has an overall gear ratio of 8:1 (5:1 external, 1.6:1 internal).

12

i love this design, the first flywheel design ive seen all year, really optimized (gear ratio) for close shooting. Congrats.

13

Thanks, optimizing the close range shooter is what we set out to do so I am glad we achieved it.